style.css

body {
  margin: 0;
  padding: 0;
  background-color: black;
  align-items: center;
  justify-content: center;
}

h1 {
  color: white;
  margin: 1rem;
  text-align: center;
}

.main-game {
  height: 80vh;
  width: 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
}

.genius{
  display: grid;
  grid-template-areas: 'green red'
  'yellow blue';
  grid-gap: 10px;
  border: 5px solid gray;
  background-color: lightgrey;
  border-radius: 100%;
  width: 700px;
  height: 700px;
}

.blue {
  grid-area: blue;
  background-color: blue;
  border-bottom-right-radius: 100%;
}

.red {
  grid-area: red;
  background-color: red;
  border-top-right-radius: 100%;

}

.yellow {
  grid-area: yellow;
  background-color: yellow;
  border-bottom-left-radius: 100%;
}

.green {
  grid-area: green;
  background-color: green;
  border-top-left-radius: 100%;
}

.selected {
  opacity: 0.3;
}

@media (max-width: 450px) {
  .genius{
    width: 350px;
    height: 350px;
  }
  
}